What size placard must be displayed by vessels that are 26 feet or longer on federally controlled waters?

The correct placard size that must be displayed by vessels 26 feet or longer on federally controlled waters is 5 x 8 inches. This requirement is in place to ensure that the information is visible and legible, promoting safety and compliance with maritime regulations. The dimensions are standardized to help prevent inconsistencies, providing a clear message regarding waste disposal regulations and other important safety information for vessels operating in these waters. This specification helps ensure that boaters are aware of the environmental regulations they must follow, which is crucial for protecting waterways from pollution and maintaining safe boating practices.